Cultivator



(No Model.

B. R. MAINE.

No. 517,227. Patented Mar. 27, 1894.

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'UNITE gratins EDWIN n. MAINE, or MAINEsBURc., PENNSYLVANIA.

CU LTIVATOR.

SPECIFICATION forming part of Letters Patent No. 517,227, dated March24, 1894.

' Application tiled July I9, 1893. Serial No. 480.925. (No model.)

.To all whom it may concern:

Be it known that I, EDWIN R. MAINE, a citizen of the United States,residing at Hainesburg, in thev county of Tioga and State ofPennsylvania, have invented a new and useful Oultivator or Harrow, ofwhich the following is a specification.

My invention relates to improvements in light cultivators, or harrows;and the objects In view are to provide one that is ot cheap, simple anddurable construction; whose teeth are yielding and are not apt to bebroken; and that may be adjusted laterally for cultivating or harrowinga wide or narrow path as may be desired.

Various other objects of the invention will appear in the followingdescription, and the novel features thereof will be particularly pointedout in the claims.

Referring to the drawings: Figure 1 is a perspective View of acultivator or harrow embodying my invention. Fig. 2 is a sectional viewthrough one of the barrow-bars, a tooth being shown in side elevation.Fig. 3 is a longitudinal section through the cultivator. Fig. 4 is abottom perspective view of the front end of main beam.

Like numerals of reference indicate like parts in all the figures of thedrawings.

In the practice of myinvention I employ a central main beam 1, whichtoward its front end is made wider, forming a head 2, the rear side ofwhich gradually merges into the beam 1, producing the curved or cutoutbearing shoulders 3. Cross pieces 4 are secured to the beam 1 above andbelow the bearing shoulders 3 and are securely bolted to said beam. Apair of cultivator bars 5 have their front ends at theirinner cornersrounded and located between the cross-pieces 4 and are pivotally boltedthereto by bolts 6. Near the rear ends of the bars 5 are bolted theouter ends of a pair of transverse adjusting bars 7, pivoting-bolts 8being employed for this purpose. These adjusting bars 7 overlap at theirinner ends and also overlap the rear ends of the main beam 1. Each ofthe bars 7 is provided with a series of bolt-holes 9, those of one baraligning withthose of the other and also with a single bolt-hole formedin the main beam l near the rear end of the latter, and anadjusting-bolt 10 is employed for the purpose of securing theadjusting-bars 7 together, and holding the cultivator-bars 5 a properdistance apart. -A block 11 is supported upon the main beam 1immediately in rear of the cross-pieces 4, and pivoted to opposite sidesot' the block by a bolt 12 is a pair of handle-bars 13, whose rear endsterminate in the usual hand-holds 14 and are connected by the transverserung 15. A metal yoke or standard 16is bolted as at 17 to the upper sideof the beam 1 immediately in rear of the adjusting bars 7, and. has itsupper branches bolted as at 18 to the inner sides of the handle bars.The head 2 of the beam 1 is provided with the usual draft-hook 19 orother suitable draft-device, and is bolted as at 2O to a horizontallydisposed U-shaped runner 2l, the lower horizontal portion resting uponthe ground and serving to support the front end of the machine. The head2 of the beam 1 is provided at each side of its center with perforations22, one being arranged in advance of the other, and

in rear of each perforation a channel 23 is formed in the head. Pairs ofsimilar perforations are formed in each of the bars 5, one perforationof each pair being arranged in advance of the other, and similarchannels are also formed in rear of each perforation. Spring teeth 24have their upper ends let into the perforations, for which purpose theyare upwardly bent at their extremities, as at`25, and are threaded, saidextremities receiving nuts 26, whereby they are held in place.Immediately below the bars in which they are mounted the teeth arerearwardly disposed in the line of draft just below the channels 23 asindicated at 27, and are finally bent downward to form the cultivatingends 28. Eyebolts 29 receive the horizontal portions of the teeth, passup through the beam and bars, and are provided with nuts 30. In additionto the front pair of teeth carried by the beam 1 a rear tooth islikewise located upon the under side of said beam. It will be seen'thatthe series of bars are staggered with relation to each other, and thatthe space traversed by the machine is very thoroughly cultivated in amanner that will be obvious. The channels upon the under sides of thebars permit the teeth to vibrate so as to increase the action of thesame.

In operation the runner 21 rides lightly over the soil, thus supportingthe front end of the machine, and the series of teeth are draggedthrough the soil in the usual manner, pulverizing the same.

I do not limit my invention to the precise details of constructionherein shown and described, but hold that I :may vary the same to anydegree and extent within the knowledge of the skilled mechanic.

Having described my invention, what I claim is 1. In a cultivator, thecombination with the central beam having a projected head at its frontend, opposite toothed side bars pivoted to the central beam at the innerend of its head, adjusting devices between the rear ends of the sidebars and the rear ends of the central beam, a U-shaped horizontallydisposed runner 21, attached to the front extremity of the projectedhead of the central beam and having its lower horizontal end travelingon the ground, and cultivating teeth secured to the central beam,certain of said teeth being located on the front head in rear of and atpoth sides of said runner, substantially as set orth.

2. In a cultivator, the combination with a bar having a perforation andin rear of the saine provided with a channel extending therefrom at anangle, of a spring tooth having its upper end passed through theperforation and provided with a nut above the bar,

and below the perforation rearwardly bent in a horizontal line as at 27under the channel, and finally terminating in depending verticalportions 28, and an eye-bolt embracing the horizontal portion 27 of thetooth and passing through a perforation in the bar and provided with anut, substantially as specified.

3. In a cultivator, the combination with the main beam widened at itsfront end, the horizontally disposed U-shaped runner secured thereto,the upper and lower cleats applied to said main beammthe side beamspivoted to the ends of the cleats, and the rear adjusting bars, saidside beams being provided with pairs of perforations having channels inrear of the same, of the spring teeth comprising the vertical portions25 and 28, and the horizontal portions 27, the said vertical portions 25being arranged in the front perforation of each pair, and the horizontalportions seated in the grooves or channels in rear thereof, and theeye-b0lts 29 receiving the horizontal portions of said teeth and locatedin the rear perforatons, and the nuts 26 and 30 arranged on the upperends of the cleats and eye-bolts respectively, substantially asspecified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

EDWIN R. MAINE. kVvitnesses:

T. Il. TAYLOR, A. J. BROWN.

